Security is freedom from, or resilience against, potential harm from external forces. Beneficiaries of security may be persons and social groups, objects and institutions, ecosystems, and any other entity or phenomenon vulnerable to unwanted change by its environment.
The automotive industry is a wide range of companies and organizations involved in the design, development, manufacturing, marketing, and selling of motor vehicles, some of them are called automakers.
An automotive service provider inspects, maintains and repairs all sorts of motor vehicles.
A trade-in car is a vehicle that you offer to the dealership in exchange for credit toward the price of the automobile that you're purchasing. Generally, a trade-in can be any vehicle that has value, but the amount that you get for the trade-in can vary greatly.